package com.atguigu.eduservice.controller;

import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/eduservice/teacher")
//@CrossOrigin  //解决跨域
public class EduTeacherController {


    //访问地址 : http://localhost:8002/eduservice/teacher/findAll

    //swagger测试访问地址 : http://localhost:8002/swagger-ui.html

    //把service注入
    @Autowired
    private EduTeacherService teacherService;

    //1.查询讲师表所有数据
    //rest风格
    @GetMapping("findAll")
    public R findAllTeacger(){
        //调用service的方法实现查询所有操作
        List<EduTeacher> list=teacherService.list(null);
        return R.ok().data("items",list);
    }

    //2.逻辑删除讲师方法
    @DeleteMapping("{id}")
    public R removeTeacher(@PathVariable String id){
        boolean flag = teacherService.removeById(id);
        if(flag){
            return R.ok();
        }else{
            return R.error();
        }
    }

    //3.分页查询讲师的方法
    //current当前页
    //limit每页记录数
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,@PathVariable long limit){
       //创建page对象
        Page<EduTeacher> pageTeacher=new Page<>(current,limit);
        //调用方法实现分页
        //调用方法时候,底层封装把分页所有数据封装到pageTeacher对象里面
        teacherService.page(pageTeacher,null);

        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合

//        Map map=new HashMap();
//        map.put("total",total);
//        map.put("rows",records);
//        return R.ok().data(map);

        return R.ok().data("total",total).data("rows",records);
    }

    //4.条件查询带分页的方法
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit,
                                 @RequestBody(required=false) TeacherQuery teacherQuery){
        //创建一个配置对象
        Page<EduTeacher> pageTeacher=new Page<>(current,limit);
        //构建条件
        QueryWrapper<EduTeacher> wrapper=new QueryWrapper<>();

        //多条件组合查询
        //mybatis 动态sql
        //判断条件值是否为空,如果不为空拼接条件
        String name=teacherQuery.getName();
        Integer level=teacherQuery.getLevel();
        String begin=teacherQuery.getBegin();
        String end=teacherQuery.getEnd();

        if(!StringUtils.isEmpty(name)){
            //构建条件
            wrapper.like("name",name);
        }

        if(!StringUtils.isEmpty(level)){
            wrapper.eq("level",level);
        }

        if(!StringUtils.isEmpty(begin)){
            wrapper.ge("gmt_create",begin);
        }

        if(!StringUtils.isEmpty(end)){
            wrapper.le("gmt_create",end);
        }

        //排序
        wrapper.orderByDesc("gmt_create");

        //wrapper
        //调用方法实现条件分页查询
        teacherService.page(pageTeacher,wrapper);

        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合


        return R.ok().data("total",total).data("rows",records);

    }

    //5.添加讲师接口方法
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = teacherService.save(eduTeacher);
        if(save){
            return R.ok();
        }else{
            return R.error();
        }
    }

    //6.根据讲师id进行查询
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id){
        EduTeacher eduTeacher=teacherService.getById(id);
        return R.ok().data("teacher",eduTeacher);
    }

    //7.修改讲师
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher){
        boolean flag = teacherService.updateById(eduTeacher);
        if(flag){
            return R.ok();
        }else{
            return R.error();
        }
    }
}
